Gear wheel



C. H. WILLS.

em WHEEL. APPLICATION FILED IAN.I?.19ZI- 1,436,787. Patented Nov. 28,1922.

" Q "Q Q Q \ullllummmmm I Q g} WWW" j i 1 l g 7 54 N O Q Q 40 also radially Patented Nov. 28, 1922 unwa s STATES CHILDE HAROLD WILLS, OF KABYSVILLE, MIOHIGAN.

GEAR WHEEL.

Application filed January 17, 1921. Serial No. 487,683.

To all whom it may concern:

Be it known that I, CmLon HAROLD WILLS a citizen of the United States, residin r at hlarysville, in the county of St. Clair ant State of Michigan, have mvented certain nea and useful Improvements in Gear Wheels, of which the following is a specification.

This invention relates to gear wheels. lhe object of the invention is to provide a gear wheel bearing means adapted to damp out the sound vibrations of the gear and dcaden the ring caused by the contact of the teeth of an en aging gear. The invention is of portion or utillty when embodied in the gears of motor vehicles in which the prevention of noise is a highly desirable end. The invention particu arly aims to attain the above object by a construction which will enable the necessary rigidity of the wheel to be preserved and pomess a metallic body in that part of the gear wheel in which the gear teeth are formed.

With the above object in view the invention is embodied in referable form in the construction hereina ter described and illustrated in the accompanying drawings, in which drawings- Figure 1 is a face View of a gear wheel contain the invention; and

Figure is a cliametrical section of Fig ure 1.

Referring to the drawing, 1 is the web or "as central body portion of the Fear wheel. The

body of the mm in which 1: gear teeth are formed consists of two metallic rin 2 and 3 which are separated one from t e other radially of the gear wheel, and axially and from the body of the web of the ear wheel. In the particular gear wheel here shown the web is of steel to .give strength and the circumferential r ng members of iron to give wearing quality. The rim members have teeth sections 4 out therein. Between the inner circumferential faces of the rim members and the outer circumferential face of the web body of the gear is mounted the axial flange 5 of a rim retain- 60 ing member which has a radially prqectmg flange 6. The web body of the has a radial flange 7. The rim sections ave radially extending flanges 8 and 9 which are adapted to be clamped between the flanges {i and 7 by means of rivets or bolts 10 passing through all four flanges. The rim sections are thus rigidly secured to the web of the gear.

Between the radial inner faces of the two rim members is a ring 11 of paper or similar non-elastic, sound-damping material. Similar sound-damping members 12 and 13 are mounted respectively between the outer radial face of the rim member 2 and the ange 7 of the web, and between the rim member 55 3 and the flange 6 of the retainer. Owing to the arrangement of the sound-dam ing members in planes parallel to radii o the gear wheel the circumferential meeti surfaces me he metallic and hence close tting, and rigi connecting of the rim and web is attained and true concentricity of these parts insured.

I claim:

1. A gear wheel haviu separate from the body of t e or and comprisianlg twosectionsseparate radially, a radi y flanged retainer member, a radial a toothed rim flange on the bod of the wheel, said rim sections havingra ially extending parts be- 30 tween said flanges, members of sound-damping material between the adjacent radial surfaces of said sections and between said sections and the rim and retainer flanges, and means for securing said rim sections to 86 the body of the ar.

2. A gear w eel having a toothed rim separate from the body of the wheel and comprising two sections separated radially, sound-damping material between the wdja- 90 cent radial surfaces, a radially flanged retainer member, a radial flange on the body of the wheel, the rim sections havin portions extending radially between the fl anges, sound-dam Jing material between the portions andanges, and common means for seeuringseid rim sections and retainer to the wheel body.

3. A gear wheel having a toothed rim separate from the body of the wheel and'1oo comprising two sections separated radially, sound-damping material between the adjacent radial surfaces, a radially flanged retainer member, a radial flange on the body of the wheel, the rim sections ha portions extending radially between the flanges,

sound-damping material between the portions and flanges, an axial flange on the retainer member extending between the rim sections and the body of the wheel and hav- 10 ing metal to metal contact with the sections and wheel, and means for retainin the sections and retainer in place upon tie wheel.

Signed at Marysville, Michigan, this 12th day of Januar 1921.

CI-I fLDE HAROLD WILLS. 

